Key result
Admission LDL-C under 70 mg/dL is linked to higher in-hospital mortality in acute ischemic stroke.
Why the study?
The study aimed to identify predictors of in-hospital survival in patients with acute ischemic stroke and to examine the association between low-density lipoprotein cholesterol levels and in-hospital mortality to provide a basis for precision nursing strategies.
Does a very low admission low-density lipoprotein cholesterol level (< 70 mg/dL) affect in-hospital survival in patients with acute ischemic stroke?
Observational (n=2,733)
No
Does a very low admission low-density lipoprotein cholesterol level (< 70 mg/dL) affect in-hospital survival in patients with acute ischemic stroke?
In patients with acute ischemic stroke, admission LDL-C < 70 mg/dL is paradoxically associated with higher in-hospital mortality, potentially serving as a clinical marker of underlying nutritional frailty or poor physiological reserve rather than cardiovascular resilience.
Should not yet alter lipid targets in acute stroke; leaves open frailty-adjusted risk models in prospective studies.
Aims To identify the predictors of in‐hospital survival in patients with acute ischemic stroke and to examine the association between low‐density lipoprotein cholesterol levels and in‐hospital mortality, thereby providing a basis for precision nursing strategies. Design A retrospective observational study. Methods Data were analysed from 2733 patients with acute ischemic stroke admitted to a regional hospital between 2019 and 2023. Variables included demographics, comorbidities, physical examinations, biochemical indicators and symptom‐to‐door time (SDT). Stroke severity was assessed using the National Institutes of Health Stroke Scale. Survival was defined by the modified Rankin Scale at discharge, where scores of zero to five represented survival and a score of six represented death. Multivariable logistic regression was used to identify independent predictors of survival, adjusting for nine covariates including gender, age and lipid profiles. Results The analysis identified female gender, age 65 years or older, history of heart disease, smoking habits and low‐density lipoprotein cholesterol levels as significant independent predictors of survival. Specifically, female patients, older adults, those with heart disease and smokers faced a significantly higher risk of mortality. Notably, very low levels of low‐density lipoprotein cholesterol (< 70 mg/dL) were associated with a substantially higher risk of death compared to patients with moderate or high levels, highlighting a lipid paradox where lower cholesterol values at admission predicted poorer survival. Conclusion There is a paradoxical relationship between low‐density lipoprotein cholesterol and survival; extremely low levels significantly increase mortality risk, potentially reflecting poor physiological reserve or malnutrition. Crucially, stroke nurses and Clinical Nurse Specialists should not misinterpret low admission LDL‐C as clinical resilience. Instead, paradoxical hypocholesterolemia serves as a critical marker of occult nutritional frailty and physiological exhaustion. Integrating baseline lipid profiles into routine nursing assessments enables early identification of vulnerable patients and proactive surveillance, generating key hypotheses for future prospective trials to evaluate targeted precision‐nursing and nutritional interventions. Patient or Public Contribution No Patient or Public Contribution.
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Chen et al. (2026) conducted an observational in Acute ischemic stroke (n=2,733). Very low admission low-density lipoprotein cholesterol (< 70 mg/dL) vs. Moderate or high low-density lipoprotein cholesterol levels was evaluated on In-hospital survival vs. death defined by the modified Rankin Scale at discharge (scores 0-5 representing survival, score 6 representing death). Very low admission LDL-C (<70 mg/dL), age ≥65 years, female sex, heart disease, and smoking independently predicted higher in-hospital mortality in 2,733 acute ischemic stroke patients.
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